倒排索引技术在信息检索中的应用

摘要

The paper gave research and analysis on the inverted index technology and adopted the improved TFIDF weighting formula in order to improve the accuracy of retrieval explained;introduced a distributed multi-threading technology, cache technology in the retrieval system.Experimental results show that,the information retrieval and the accuracy of retrieval speed has been greatly improved.%本文对倒排索引技术进行研究和分析，采用改进的TFIDF权重计算公式，并在检索系统引入了分布式多线程技术、缓存cache技术。实验表明，信息检索的准确性和检索速度有了很大的提高。